为提高半闭环数控机床的位置精度,建立半闭环位置控制数学模型,研究机床传动误差的补偿机理,构造半闭环误差补偿控制模型,并通过一个实例验证了该误差补偿方法的有效性.%To impure the position accuracy of semi-closed-loop CNC machine too1, its position dynamic control model was established, The principle of mechanical transmission error compensation was analyzed, and a compention control loop was presented.The experimental result shows that the method of error compensation can effectively improve the accuracy of CNC machine tool.
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